Horn or signaling device.



w1.V In. Hucmsow. HORN on SIGNALING DEVICEIv APPLICATION FILED vIAN. 14. 191.0.

, Patented Nov.v 16111915.

` Lvl-,901.

1 x l i i l l l l Y l d l l x i x x L Y mmm MILLER REESE HUTCHISON, 0F NEW YORK, N. Y., ASSIGNOR TC LOVELL-MUCONNELL MANUFACTURING COMPANY, A CORPORATION 0F DELAWARE.

HORN 0R SIGNALING DEVICE.

Application ledJanuary 14, 1310. Serial N o. 538,052.

T 0 all whom t may concern.'

Be it known that I, MILLER REESE HUTGHIJ soN, a citizen of the United States, and resi' dent of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Horns or Signaling Devices, of which the following is a specification.

My present invention relates to horns or signaling devices wherein a vibratory member such as a diaphragm is actuated by power derived from a rotary member or drive shaft, which may be the armature shaft of an electric motor. In my prior Patents NOS. 923,043, 923,049, and 923,122, I have disclosed various means through which movement of a rotary member may be applied to operate the diaphragm. As stated in said patents, the specific mechanisms shown and described therein are merely illustrative of a great variety of forms covered by but not specifically described in said patents, and my present invention includes novel driving means especially adapted for. similar uses, but which may be employed in other relations where their functions or advantages may prove useful.

My present invention is particularly applicable to a construction in which the drive shaft is positioned perpendicularly to the diaphragm and is eccentric thereto or out of alinement with the center thereof to a distance equal to the radius of the rotary cam member carried by the drive shaft. By means of my invention the rotary cam member may be readily and easily advanced toward and moved away from the diaphragm to any desired degree, the drive shaft being adjustable within the cam case to any desired position on the circumference of a circle having the axis of the said case as a center.

Having thus described my invention in In the construction shown, the horn orl resonator 1, the diaphragm case 2, the peripheral iange 3, the diaphragm 4, the clamp 5, the Washer 6, and cork-like gasket 7 may be of any known construction, such, for example,as shown in my prior applicatlons above mentioned. 'The cam case is formed with a cylindrical portion 8 bearlng a circular flange 9, the periphery of the latter being screw threaded to permit of the positioning of the cam case to hold the diaphragm in position and to form the rear portion of the horn construction. The inner surface of the cylindrical portion 8 of the l cam case has an axis concentric with the diaphragm and is screw threaded. A circular plate member 10 having a screw threaded periphery may be screwed into the cam case to any desired position intermediate the ends thereof. A tapered screw hole 11 is formed in the plate member 10 adjacent the edge thereof, said plate 10 being split from the edge, the line of separation passing through the screw hole. When the plate member 10 has been adjusted to a desired position within the cam case an expanding screw 12 is inserted in the screw hole and by reason of the taper, the plate member is forced apart at the split and is adjustablyheld against turning within the cam case. At one side of its center the late member 10 is apertured to permit of) the insertion of a cylindrical barrel 13 bearing a circular ange'lel adapted to abut against the rear surface of the plate 10 and is formed with a screw threaded periphery on the portion thereof projecting on the opposite side of the plate; a` circular clamping ring or nut 15, being screwed on the threaded portion of theiperiphery of barrel 13, and bearing upon the surface of the plate 10 holds `the barrel 13 in position. Barrel 13 is provided with a circular bore which is enlarged at each end to form circular recesses 16.l A shaft 17 passes through barrel 13, being provided at On the opposite end of shaft i7 adjacent the diaphragm is drive shaft are rotated by means of the ar-V mature shaft of a motor A, the armature shaft being couplied to the cam shaft by a second screw 24. Motor A may be any suitable motor though for most purposes, l prefer a low voltage direct current, electric motor adapted to rotate always in one direction regardless'of the polarity of the currents supplied thereto. TWhere exceptionally high frequencies are desired such as cannot be obtained by a direct drive from the motor as above described, the motor may be belted to the cam shaft through large and small pulleys 25 and 26, respectively, so as to secure a desired higher rate of speed, such an arrangement being indicated in the drawing in broken lines. i

llt will be seen that in the construction above described the rotary cam member 21 is advanced toward or Withdrawn from the diaphragm 4f, by screwing the plate member lO withinthe cam case to change its position correspondingly. By means of this adjust' ment of parts, the Contact desired between the rotary cam member 2l and the Wear piece or diaphragm projection 22, is secured and the position of the drive shaft, 'With respect to projection 22, on the circumference of a circle about the latter With radius equal to that of cam member 2l, is in accordance with such adjustment. By reason of this range of adjusted positions of thevdrive' shaft and 'rotary cam member the diaphragm projection must be adapted for contact with the cam member from any direction and is therefore formed With a spherical surface.

rlhe operation of the preferred foi-:n of device embodying my invention Will be readily understood from the lforegoing description thereof, the vibratory movement of the diaphragm to produce the desired sound to be projected by the horn or resonator being secured through contact be# tween the Wear piece or projection on the diaphragm and the rotating cam member on the drive shaft. The center of volume or mass of lthe operating parts lying on a line adjacent to and parallel with a line perpendicular to the diaphragm passing through the center thereof, the case covering said' parts is of less diameter than and is positioned Well Within the periphery of the diaphragm and the entire device is symmetrical with respect to a straightline passing through the axis of the horn and the center of the diaphragm.

insonni Vihile i have herein fully shown and described, and have pointed out in the appended claims certain novel features of construction, arrangement, and operation which characterize my invention, it will be understood by those skilled in the art that various omissions, substitutions, and changes in the forms, proportions, sizes, and details of the device and of its operation, may be made Without departingfrom my invention.

l claim: l

l. ln a horn or signalingdevice, ka diaphragm, means for mechanically agitating said diaphragm, includinga motor and drive shaft, said drive shaft being arranged at an angle to the plane of the diaphragm, and a screw threaded support eccentric to the drive shaft enabling longitudinal adj ustmentl to said shaft and concentric With said Wearv piece enablingslongitudinal adjustment of jections presented cndwise 'to the diaphragm, and a Wear-piece formed so as to be capable of universal presentation to said projections, in combination with screw means concentric With the axis of the Wear-piece for eecting relative adjustment between the Wear-piece and driver by turning one of said parts.

5. ln a horn or signal, a diaphragm, complementary parts for the agitation of the diaphragm comprising a Wear-piece or thrust-receiving member anda rotary driver With .thrust projection, and an adjusting screw for effecting relative rotation of said parts about the aXis of the Wear-piece so that the latter is caused to intersect the path of said projection to a greater or less extent, said Wear-piece being-formed so as'to be capable of universal presentation.

6. ln a horn or signal, a diaphragm with a universally presentable Wear-piece, a rotary driver presented endwise to said diaphragm and having face projections, and a screw support for one of said parts for effecting relative rotation thereof about the axis of the Wear-piece with consequent adj ustment toward and from each other.

7. In a horn or signal, a diaphragm, mechanical means for vibrating the diaphragm including a drive shaft, a rotor having projections, a wear-piece carried by the diaphragm and formedV for universal presentation to Said projections, in combination with supports for the diaphragm and actuating means having screw engagement whereby the diaphragm and actuating means may be relatively rotated and adjusted toward and from each other.

8. In a horn or signal, a diaphragm, a wear-piece thereon, and a rotary driver, said diaphragm and rotary driver being relatively rotatable about the axis of said wearpiece, and said wear-piece being symmetrical with respect to an axis at right angles to said diaphragm.

9. AIn an alarm or signaling device, a diaphragm, an impulse receiving part thereon symmetrical in respect to anaxis at right angles to the diaphragm at the center thereof, an actuating part in the form of a head rotatable in a plane substantially parallel to said diaphragm and about an axis eccentric to said axis of the diaphragm and having a series of cam projections on the face thereof toward said diaphragm and adapted to successively engage with the outer face of said rst-mentioned -part away from said diaphragm and force the center of the diaphragm out of its normal plane, the path I of travel of said cam projections being eccentric to lsaid axis of the diaphragm, a member rotatable about said axis of the diaphragm for advancing one of said above mentioned parts toward the other to vary the extent of the forced movement of the diaphragm, and meansfor rotating said second-mentioned part at a speed to force upon said diaphragm a movement of' sucient frequency to generate a note, as and for the purpose described.

10. In a horn or signaling device, a diaphragm, means for mechanically agitating said diaphragm, including a drive shaft disposed substantially at right angles to the plane of the diaphragm and eccentric in re` spect thereto, a support for said shaft, means for holding said shaft against longitudinal movement in respect to said support, and means for adjusting said support toward and from said diaphragm.

11. In a horn or signaling device, 'a diaphragm, means for mechanically agitating said diaphragm, including a drive shaft disposed substantially at right angles to the plane of the diaphragm, a support forsaid shaft, means for holding said shaft against longitudinal movement in respect to said support, and means for adjusting said support toward and from said diaphragm by a rotary movement about an axis at right angles to the diaphragm.

`12. In a horn or signaling device, a diaphragm, means for mechanically agitating said diaphragm, including a drive shaft disposed substantially at right angles to the plane of the diaphragm and eccentric in respect thereto, a support for said shaft, omeans for holding said shaft against longitudinal movement in respect to said support, means for adjusting said support toward and from said diaphragm by a rotary movement about lan axis at right angles to the diaphragm, and means for locking said support in its adjusted position.

' Signed at New York city, in the county of New York and State of New York, this 13th day of January, A. D. 1910.

MILLER REESE I-IUTCI-IISON. Witnesses:

GEORGE C. DEAN, IRVING M. OBRIEGHT. 

